locations, v3)
  File "/usr/lib/python2.7/dist-packages/bzrlib/plugins/builddeb/cmds.py", line 576, in _fetch_tarball
    for location in locations:
TypeError: 'NoneType' object is not iterable

3.122  return code 4

Fri 2011-07-29 10:53:03 -0400
0.047  bazaar version: 2.4b5
0.047  bzr arguments: [u'merge-upstream']
0.074  looking for plugins in /home/jeremy/.bazaar/plugins
0.074  looking for plugins in /usr/lib/python2.7/dist-packages/bzrlib/plugins
0.136  encoding stdout as sys.stdout encoding 'UTF-8'
0.170  opening working tree '/home/jeremy/devel/libnatpmp/oneiric'
0.207  Using 'debian/changelog' to get package information
[25685] 2011-07-29 10:53:04.103 INFO: Using distribution oneiric
[25685] 2011-07-29 10:53:05.093 INFO: Using version string 20110715.
[25685] 2011-07-29 10:53:05.094 INFO: Using uscan to look for the upstream tarball.
2.982  Transferred: 0kB (0.0kB/s r:0kB w:0kB)
2.984  Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/bzrlib/commands.py", line 946, in exception_to_return_code
    return the_callable(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/bzrlib/commands.py", line 1150, in run_bzr
    ret = run(*run_argv)
  File "/usr/lib/python2.7/dist-packages/bzrlib/commands.py", line 699, in run_argv_aliases
    return self.run(**all_cmd_args)
  File "/usr/lib/python2.7/dist-packages/bzrlib/commands.py", line 721, in run
    return self._operation.run_simple(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/bzrlib/cleanup.py", line 135, in run_simple
    self.cleanups, self.func, *args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/bzrlib/cleanup.py", line 165, in _do_with_cleanups
    result = func(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/bzrlib/plugins/builddeb/cmds.py", line 757, in run
    locations)
  File "/usr/lib/python2.7/dist-packages/bzrlib/plugins/builddeb/cmds.py", line 602, in _get_tarballs
    locations, v3)
  File "/usr/lib/python2.7/dist-packages/bzrlib/plugins/builddeb/cmds.py", line 576, in _fetch_tarball
    for location in locations:
TypeError: 'NoneType' object is not iterable